18754274666 has 8 divisors (see below), whose sum is σ = 28132121664. Its totient is φ = 9376900780.

The previous prime is 18754274663. The next prime is 18754274701. The reversal of 18754274666 is 66647245781.

18754274666 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18754274663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7631 + ... + 193821.

It is an arithmetic number, because the mean of its divisors is an integer number (3516515208).

Almost surely, 2^18754274666 is an apocalyptic number.

18754274666 is a deficient number, since it is larger than the sum of its proper divisors (9377846998).

18754274666 is a wasteful number, since it uses less digits than its factorization.

18754274666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236556.

The product of its digits is 13547520, while the sum is 56.

The spelling of 18754274666 in words is "eighteen billion, seven hundred fifty-four million, two hundred seventy-four thousand, six hundred sixty-six".